Re: [microblaze-uclinux] 10 msec number of ticks bug..

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi Prasad,

DeviPrasad Natesan wrote:

> I rechecked the microblaze timer document, it does say it correctly
> (matches whatever i calculated). So the code should have been
> 
> count = ((unsigned)-1) - CONFIG_XILINX_CPU_CLOCK_FREQ / rate + 2;

Committed to CVS.

> Also, please correct the following in the do_settimeofday() in the
> time.c. The "#if 0" should be removed. Otherwise, it wouldn't count
> the elapsed ticks whenever settimeofday() called potentially leading
> to the fixed offset.
> 
> #if 0
>        tv->tv_usec -= mach_gettimeoffset ();
> #endif

Also applied (in a slightly different form):

-#if 0
-       tv->tv_usec -= mach_gettimeoffset ();
-#endif
+       tv->tv_usec -= mach_gettimeoffset ? mach_gettimeoffset () : 0;

The offset must be conditional on the existence of the mach_gettimeoffset
symbol, which might not be defined on some platforms.

Thanks,

John

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